Debuffs provided by Tyrannical Curse (SW skill), Token of Chromatic Storm (artifact), Ambush Drake (companion) and Repentant Dragon Cultist (companion) are incorrectly increased by certain stats and buffs. And when I say "increased" I mean that, for example, Tyrannical Curse gave me 230% debuff instead of 20% when I was buffed by Hallowed Ground, Into the Fray, Pillar of Power and Exaltation. Of course I could reach higher numbers without much effort.